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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:

第46卷

期数:

2024年第04期

页码:

557-568

栏目:

大地测量、遥感与地学大数据

出版日期:

2024-07-15

文章信息/Info

Title:

Identification and Deformation Monitoring of PotentialGeotechnical Hazards in the Deqin Section of the Lancang River, China

文章编号:

1672-6561(2024)04-0557-12

作者:

王伟卓¹; 赵超英¹; 2; 3*; 刘晓杰⁴; 陈立权¹; 魏玉明⁴

(1. 长安大学 地质工程与测绘学院,陕西 西安 710054; 2. 长安大学 西部矿产资源与地质工程教育部重点实验室,陕西 西安 710054; 3. 长安大学 自然资源部生态地质与灾害防控重点实验室,陕西 西安 710054; 4. 兰州理工大学 土木工程学院,甘肃 兰州 730050)

Author(s):

WANG Wei-zhuo¹;  ZHAO Chao-ying¹; 2; 3*;  LIU Xiao-jie⁴;  CHEN Li-quan¹;  WEI Yu-ming⁴

(1. School of Geological Engineering and Geomatics, Chang'an University, Xi'an 710054, Shaanxi, China; 2. Key Laboratory of Western China's Mineral Resources and Geological Engineering of Ministry of Education,Chang'an University,Xi'an 710054, Shaanxi, China; 3. Key Laboratoryof Ecological Geology and Disaster Prevention ofMinistry of Natural Resources,Chang'an University, Xi'an 710054, Shaanxi, China; 4. School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, Gansu, China)

关键词:

InSAR技术;  石冰川;  地质灾害;  形变监测;  奇异谱分析;  澜沧江

Keywords:

InSAR technolgy;  rock glacier;  geohazard;  deformation monitoring;  singular spectrum analysis;  Lancang River

分类号:

P237

DOI:

10.19814/j.jese.2023.12042

文献标志码:

A

摘要:

青藏高原东南缘地形起伏大,构造运动活跃,发育着冰川和冻土,地质灾害种类多且发生频繁。为研究该地区地质灾害的分布特征和运动规律,选取澜沧江德钦段作为研究区,基于一个轨道的ALOS-2卫星和3个轨道的Sentinel-1A卫星数据,利用Stacking-InSAR和DS-InSAR技术分别进行了研究区大范围地质灾害调查和典型泥石流物源区的时间序列监测,并采用奇异谱分析(SSA)提取了形变的周期项特征。结果表明:研究区内共存在670个形变区域,石冰川占大部分,位于海拔较高的山顶,距澜沧江5 km的范围内有27个滑坡; 选取的典型泥石流物源区2017～2022年形变时间序列呈线性趋势,其中石冰川周期项形变与降水量和气温存在相关性。

Abstract:

The southeastern Qinghai-Xizang Plateau has significant topographical variations, active tectonic movements and developed glaciers and permafrost. A variety of geotechnical disasters occur frequently in this region. In order to study the distribution characteristics and movement patterns of geotechnical hazards in this region,theDeqin section ofthe Lancang River was selected as the research area. Based on thedata formALOS-2satellite of one track and Sentinel-1Asatelliteof three tracks,large-scale geotechnical hazards investigation in the study area were conducted using Stacking-InSAR technology, whiletime-seriesmonitoring of typical debris flow source areas was carried out using DS-InSAR technology. Singular spectrum analysis(SSA)was employed to extract the periodic characteristics of deformation. The results show that there are a total of 670 deformation areas in the study area, most of which are rock glaciers located on the mountain tops of high elevations, and 27 landslides are distributed within a 5 km-distance from theLancang River; the deformation time series of the selected typical debris flow source area from 2017 to 2022 shows a linear trend; both precipitation and temperature are correlated with the periodic deformation of the rock glacier from this source area.

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备注/Memo

备注/Memo:

收稿日期:2023-12-23; 修回日期:2024-04-06投稿网址:http:∥jese.chd.edu.cn/
基金项目:国家重点研发计划项目(2022YFC3004302)
*通信作者:赵超英(1976-),男,山西平遥人,教授,博士研究生导师,工学博士,E-mail:cyzhao@chd.edu.cn。

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